/Engine/Plugins/Media/ElectraUtil/Source/ElectraBase/Public/MediaVideoDecoderOutput.h
struct FVideoDecoderHDRMetadata_mastering_display_colour_volume
float[3]
display_primaries_x
Index0=red, 1=green, 2=blue.
float[3]
display_primaries_y
float
max_display_mastering_luminance
float
min_display_mastering_luminance
float
white_point_x
float
white_point_y